1994 BUICK CENTURY maintenance

Tire Inspection and Rotation
To make your tires last longer, have them in
rotated at the mileages recommended in the spected and
Maintenance Schedule. See “Scheduled Maintenance
Services” in the Index.
FRONT
Use this rotation pattern.
After the tires have been rotated, adjust the front and
rear inflation pressure as ’shown on the Tire-Loading
Information label. Make certain that all wheel nuts are
properly tightened. See “Wheel Nut Torque’’ in the
Index.
240
ProCarManuals.com

Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away. Bare metal will corrode
quickly and may develop into a major repair expense.
Minor chips and scratches can be repaired with touch-up
materials available from your dealer or other service
outlets. Larger areas
of finish damage can be corrected
in your dealer’s body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are not
removed, accelerated corrosion (rust) can occur
on the
underbody parts such as fuel lines, frame, floor pan, and
exhaust system even though they have corrosion
protection.
At least every spring, flush these materials from the
underbody with plain water. Clean any areas where mud and other debris can collect.
Dirt packed in closed areas
of the frame should be loosened before being flushed.
Your dealer or an underbody vehicle washing system
can do this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on your vehicle. This damage
can take two forms: blotchy, ringlet-shaped
discolorations, and small irregular dark spots etched into
the paint surface.
Although no defect in the paint job causes this, Buick
will repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20
000 km) of purchase,
whichever comes first.
251
ProCarManuals.com

Appearance Care and Maintenance Materials
You can get these from your Buick dealer.
I I I
PART
I NUMBER I SIZE I DESCRIPTION I USAGE
See Your Maintenance Schedule for Other Products
252
ProCarManuals.com

Capacities and Specifications
Engine Code 3100 MFI V6 Code M (L82)
Belt Tensions - Fuel Tank Capacity -
Automatically controlled by a self-tensioning idler 16.5 gallons/62.6 liters
pulley. Tension adjustment should never be
Automatic Transaxle Capacity -
(4T60-E) 4-Speed
necessary.
Complete System
- 1 1.6 quarts/l0.9 1
Cooling System Capacity -
Crankcase Capacity (Less Filter) -
4 quarts/3.8 liters iters
Air
Conditioning Refrigerant Capacity (R-134a) -
2.0 lbs. (0.90 kilograms)
Not all air conditioning refrigerants are the same.
If the air conditioning system
in your vehicle
needs refrigerant, be sure
the proper refrigerant
is used.
If you’re not sure ask your Buick dealer.
For additional information, see your “Warranty
and Owner Assistance Information’’ booklet. Pan
Removal and Replacement
-
6 quarts/5.7 liters
8 quarts/7.6 liters
After
Complete Overhaul
-
Maintenance Item Part Numbers -
Air Filter - A1233C
Fuel Filter
- GF580A
Oil Filter
- PF47
PCV Valve
- CV892C
Spark Plug
- R44LTSM6, GAP 0.60” (1 SOmm)
3 rn
ProCarManuals.com

Capacities and Specifications
I
I Engine Code 4 (LN2) 2.2L L4 PFI
Belt Tensions -
Automatically controlled by an idler pulley.
Tension adjustment should never be necessary.
Cooling System Capacity -
Complete System - 8.74 quarts/8.27 liters
Crankcase Capacity (Less Filter) -
4 quarts/3.8 liters
Air Conditioning Refrigerant Capacity (R-134a) -
1.75 lbs. (.79 kilograms)
Not all air conditioning refrigerants are
the same.
If the air conditioning system in your vehicle
needs refrigerant, be sure the proper refrigerant
is used.
If you’re not sure ask your Buick dealer.
For additional information, see your “Warranty
and Owner Assistance Information” booklet.
Fuel Tank Capacity -
Automatic Transaxle Capacity -
16.5 gallons/62.6 liters
(3T40) 3-Speed
Pan Removal and Replacement
-
After Complete Overhaul - 7 quarts/6.6 liters
4 quarts/3.8 liters
Maintenance Item Part Numbers -
Air Filter - A905C
Oil Filter - PF47
PCV Valve - CV9OOC
Spark Plug
- 41-908, GAP 0.06” (1.502mm)
260
ProCarManuals.com

(@ Part 7 Maintenance Schedule
.
-1 I I
~~
This part covers the maintenance required for your Buick . Your vehicle needs these services to retain its safety.
dependability and emission control performance
.
Part 7 includes:
Introduction ......................................................................
A Word About Maintenance .....................................................
Your Vehicle and the Environment ................................................
How This Part is Organized .....................................................
Section A: Scheduled Maintenance Services .............................................
Using Your Maintenance Schedules ...............................................
Selecting the Right Schedule ....................................................
Schedule1 ...................................................................
Schedule11 ..................................................................
Explanation of Scheduled Maintenance Services .....................................
Section B: Owner Checks and Services .................................................
AtEachFuelFill ..............................................................
AtLeastOnceaMonth .........................................................
AtLeastOnceaYear ..........................................................
Section C: Periodic Maintenance Inspections ............................................
Section D: Recommended Fluids and Lubricants .........................................
262
262
263
263
264 264
265
266
268
270
272 272
273
273
275
277
Section
E: Maintenance Record ....................................................... 279
261
ProCarManuals.com

IMPORTANT:
KEEP ENGINE OIL
AT THE PROPER
LEVEL
AND CHANGE AS
RECOMMENDED
I protection
Plan
Have you purchased the GM Protection Plan? The
Plan supplements
your new vehicle warranties. See
your Buick dealer
for details.
Introduction
A Word About Maintenance
We at General Motors want to help you keep your
vehicle in good working condition. But we don’t know
exactly how you’ll drive it.
You may drive very short
distances only a few times a week. Or you may drive
long distances all the time in very hot, dusty weather.
You may use your vehicle in making deliveries. Or you
may drive it to work, to do errands
or in many other
ways.
Because of all the different ways people use their GM
vehicles, maintenance needs vary.
You may even need
more frequent checks and replacements
than you will
find in the schedules in this part.
So please read this
part and note how you drive.
If you have any questions
on
how to keep your vehicle in good condition, see your
Buick dealer, the place many GM owners choose to
have their maintenance work done.
Your dealer can be
relied upon to use proper parts and practices.
262
ProCarManuals.com

Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance procedures
are important. Improper vehicle maintenance
or the
removal of important components can significantly
affect the quality of the air
we breathe. Improper fluid
levels or even the wrong tire inflation can increase the
level of emissions from your vehicle.
To help protect
our environment, and to help keep your vehicle in good
condition, please maintain your vehicle properly.
How This Part is Organized
The remainder of this part is divided into five sections:
“Section
A: Scheduled Maintenance Services” shows
what to have done and how often. Some of these
services can be complex,
so unless you are technically
qualified and have the necessary equipment,
you should
let your dealer’s service department or another qualified
service center do these jobs. If you
are skilled enough to do some work on your
vehicle, you will probably want to get the service
information
GM publishes. You will find a list of
publications and how
to get them in this manual. See
“Service Publications’’
in the Index.
“Section
B: Owner Checks and Services” tells you what
should be checked whenever
you stop for fuel. It also
explains what you can easily do to help keep
your
vehicle in good condition.
263
ProCarManuals.com